Version bump to 0.20.2.pre
Updated styling to BS3 for the email settings page
Sheet date filters on the sheets index now filter sheets now work properly
Improved speed of CSV exports
Increased margin on survey and projects splash page
Public link should open in new window
Adjusted margin
Site ranges now only display as a popup box on sheet entry, closes #25
Better spacing for datepicker dropdown
Removed Site Ranges from tab index
Export READMEs now display the number of sheets exported, closes #23
Version 0.20.2 finalized